Sennheiser TR136 Wireless Headphones Nothing Happens

I had a similar problem - after owning them for 4+ years, no sound we coming out, and no beeps -- nothing. The lights on the charger stand were on though.

I tried buying new rechargable AAA batteries and they were NIMH (nickel metalhydride?) and still didnt work. I borrowed a friend's pair of NICM (nickel cadmium?) AAA rechargables though and the problem was solved!

So, it would seem the some of the new chargable battery types might not work in older models of this unit (which is also called the RS 130 now in the US and Cdn web sites).

Hope this helps!

Just found a solution to mine: Unplug power supply, take out batteries (prob not necessary), wait a minute a reconnect. Worked!

I tried regular AAA in their place as if it were a battery issued I would think that would help, rather than rushing out to buy new ones. Still nothing. Yes my daughter did drop them, but on carpet. One would think after paying $250 they would be more durable. I need to find the receipt and try the warranty I think as I've only had them 6 months. Actually I can't even find the right model Number. When I go to the Sennheiser web sit this model number isn't even listed and I don't see any other number on the headphones.

Replace the NiMh batteries. They might be bad. Could happen during power surges as you indicated you had. Let them charge up fully 14-18 hours as the book suggests.